Vise



vIsE

Filed Deo. 9. 1942 2 Sheets-Sheet 2 RK @uw NN. @En @QQ Patented Nov. 21, 1944 l i `Robert S.

vrsE

Condon, Rutland,` and `William i Williams,l Poultney Vt. i

Harry l "Applieatin December 9, '1942, serial N. 468,402

`(ci. fao-se)- 19 claims.

i `Our invention relates to a mechanicalvise particularly'adapted for use in holding work pieces upon the tables of milling machines and other machine tools; and thelprincipal object of our invention is to provide gripping jaws for holding such work pieces securely at any angle and at a particularly advantageous short` distance from said tables.

screw shaft 22 nini-eased `inte tnenut brack-` etIB.

Anotherobject of` our invention is to provide a novel swivel` mounting for the gripping `jaws of the vise whereby the action of clamping the jaws together also `contributes to further clamping of the swivel mounting tov prevent the rotation of the workpiece while being heldby the gripping jaws. i A further object of our inventionisto provide protection for the clampingscrew against fouling from chips and dirt.`

\ A still further object of our invention is to reduce the lifting of the sliding jaw to a minimum when it iszforced into clamping position by providing novel and eflicient means for holding the said jaws down on the jaw plate itself;

We will explain the invention with reference i to the accompanying'drawings which illustrate `the vise. I i i Fig. `3 is a transverse section through theslid` ing jaw bracket and the nut bracket.

In `the drawings, I represents the vise base ring which is fitted with the swivel plate Il. Fixed jaw I2 is securely bolted to swivel plate I I l 2 showsthe nutbracket Iiiitted with an optional inserted nut Id non-rotatably secured into position in the bracket I6.` This inserted nut iSd is necessary only where a particular `material `is required fori-,his nut. fHoweverthe nut brack-g et I5 could obviously be itself tapped to receive screw shaft`22. l i j The rotation of screw` shaft 22 moves` sliding jaw bracket sincethe shoulder;22a and collar` 23 permit free rotation ,of the `screw shaft 22 in bracket 20"and `"screw shaft `221follows the threads in nut bracket I6 or nut I 6d. The screw shaft is rotated by means of a` suitable `wrench on crank gripping the flattened end 221; of the screw shaft 22.'l i i l,

The workpieces `(not shown) fwhich are held between xedjawplate IEand sliding jaw plate 2l1 are heldvery close to the work table because surface Illa is particularly close to` surface lili;r which directly contacts the table; and while the worlpieces are thusheld close to the work table the visejaws can be` swveled to any angle since lboth vise jawsl2 and 2D are mounted on swivel plateII. f,

`A clamping-screw 25 (Fig. 2,).in base ring I0 is adaptedto force a plug 26fsecu`rely into an4 annular groove] Ia in swivel plate I I to prevent rotation'` of the swivel plate in the `vise baser-ing I0. Swivel plate `I I however is further prevented from i rotation when vise jaws I2 and 2l) are clamped together because the reaction from such clamping i When `clamping screw 25 is loosened, plug 26 is by screws I3 and key I4, and istted with fixed jaw plate l5 that is secured toit by screws I2a. .K

l as' shownin Fig. 2L `A nut bracket `I6 is also se4 curedto swivel plate II by screws `Il and key I8.

This "nut bracket I5 `is machined with an overhanging shoulder Ilia to guide and hold down shoulder `2Ilband `thus hold downfsliding jaw i bracket 2U. Sliding jaw plate 2| is secured to sliding `jaw `bracket 20 `by means of screws (not shown) but in a manner similarly toscrews 12al which secure xed jaw plate I5 to jaw I2.` A screwshaft 22 is journaled in sliding jaw `bracket 20 and held against axial movement by a collar 23the`reon which turn is secured by a set screw released` and therefore slides freely in groove IIa in swivel plate II soithat `the latter is free to rotatein vise base ring I if the vise jaws I2 and `2li are not clampedagainst each other.

Sliding jaw bracket 20'is closed at its top, as at 20a, to strengthen this bracketiand to form a shield to prevent chips and dirt from fouling thescrew shaft 22.

Sliding jaw plate 2 I, as shown in Fig. 2, is pro- `vided with projections 2Ia which iit in parallel slots IIc` in swivel' plate II` which guidethem.

Collars` 2l are secured` upon projections 2Ia by means of screws 28 and these collars 2l slide l against the shoulders Hd in swivel plate II and` adapted to receive the vbolts that hold the base ring I down upon the machine tool table or other surface upon which this vise is to be mounted.

Base ring I0 is calibrated as at Ille, which calibrations `may be continued around the entire inner periphery to cooperate with zero marks lle or I lf-on the swivel plate Il to indicate Ithe particular ang-ularityl of 'the vise swivelA position.

Sliding` jaw'fb'racket` 20 `may be readily .assem-l bled in the lvise by lowering that portion of sliding jaw bracket 20 shown at 20c over nut bracket I6 before the jaws l5 .and 2l, screw 22, andcollar 23 are in position.

We do not limit our invention .to'the rexacti Vforms shown in the drawings for obviously changes maybe made therein within the scope =of the claims.

We claim:

1. A vise, comprising an annular base ring having an internal annular shoulder; a swivel plate disposed Within the base ring having an external annular shoulder and having parallel guide slots therein engaging the first Vnamed shoulder; -fa fixed Ajaw on the swivel plate; a=bracket xon the swively plate; saidljaw and bracketpositioning the Aswivel plate in the'ring while permitting free roand said means for shifting the sliding jaw .comprising a screw shaft journaled in the sliding jaw bracket and engaging the Vsaid nut; said screwshaft'having a wrench engaging extension` projecting beyondvthe sliding jaw maintained a a constant requisite maximum. f

9. In a vise as set forth in claim 6, saidrst named Ibracket having parallel guides; and'saidslidinggjaw bracket havingfcooperating guides engaging the rst mentioned guides.'

10. In a vise of the character specified, an ant :millar base ring having an internal annular shoulder; a swivel `plate within the `base ring v having an external annulark shoulder engaging 'the shoulder of the ring;a fixed jaw on the swivel plate;;a :bracket on the swivel plate; a sliding A, jaw bracket slidably mounted on the first bracket; a sliding jaw carried by said sliding jawr tation of the plate therein; aslidingfjaw slidably bracket ,fand havingprojections carrying heads -entering parallel T-slots in the swivel plate to prevent lifting-'of the'sliding jaw during clampi-n'g operations; and means for shifting the sliding' -jaw on the first bracket.

W11. `'In aqvise as set` forthin claim 10,sai`d sliding jaw'bracket being completely closed y'at' its topisurface toprevent fouling of )the jaw shiftingI means byfdirt and chips.

12. In a vise as set forth in claim 10, adjust`- able `clamping means in -thering adapted lto enslotsjto prevent `lifting-.of the .sliding jaw during clamping operations. v i

l 4.' Ina vise as set forth in claim l, adjustable clamping means in the ring adapted `to engage the swivel plate to prevent rotation of the 'lat-- ter; and said fixed -jawand` bracket overlapping the base ring `and forminga secondary clamping means dueto reaction of the clamping pressure binding the xed jaw land ,bracket down, against the base ring, said reaction also vdrawing the shoulder of the swivel plate up against the shoulder of the base'ring.

' 5. Ina vise as set forth in claim 1, said bracket carrying a non-.rotatablenutg and saidmeans for shifting" the slidingjaw comprising a `screw shaft journaled in the'slidingjaw and engaging the said nut; said screw shaft having a wrench engaging extension projecting beyond the sliding jawmaintained at a constant requisite minimum.

6. In a vise ofthe character specified, an an-A nular base ring; a swivel platerotatably mounted within said ring; a flxedjaw on the swivel plate; afbracket on 'the swivel plate; a v.sliding ljaw bracket slidably mounted onthe' first bracket; aV sliding jaw carried by'said' sliding jaw 4bracket means for shifting the sliding jaw'onthenut bracket; and said 'slidingfjaw bracket ybeing .com pletely closed at its top surface to. prevent foulingl ofthe'jaw shifting means'jby` dirt and chips.

'7."In a vise as set forth in claimf, adjustable" clamping means inthe ring adap'tedrto engage thefswivelrplatetoprevent rotation ofy the latter.-

8. In a vise as set .forth inclaim 6, said first named 'bracket rcarrying ya non-rotatable nut;

gage-the swivel-plate to prevent -rotation -of `the latter; and said fixed jaw and first bracket overlapping :the base ringand forming a secondary clam-pingtrneans due to reaction ofthe clamping pressure 'binding thexed jaw and first Abracket down -against the base ring, said reaction also drawing` fthe shoulder fof' the swivel vplate up against the shoulder of the base ring.

1 @13:51h ai. vise Aas vset forth iny claim -1`0 ,fs'aidefirstl named -bracketcarrying anon-rotatable nut;

andfsaid means for r`shifting' the sliding jaw comprising a .a sscrew shaft journaled in thev sliding jaw bracketand engaging ,the said in'ut; .said screwfshaft having a wrenchfengaging extension A projecting beyondthe-sliding jawmaintained atV a constant` requisite. maximum. l. l l

-,14.. Imaviseas-setfforth in.;claiml0,.said first namedcbracket having vparallel guides; .and said sliding jaw `bracket. :having cooperating. 'guides andbracket overlappingfthe base ring and .posi` tioning the swivel ,plate linthe yring While permitting :free rotation of the plate ,thereimla sliding-yjaw slidably mounted' ,on ythe .,b1acket,`

said vsliding jaw havingfprojections carrying heads Aentering L parallel' Tft-slots in the `swivel platettofprevent lifting oflthe slidingfjaw during clampingoperations :adjustable clamping i means inthe ringadaptedto engage the swivel plate )to prevent .rotation of the latterpand said overlappingef the ring by the fixedjawand bracket forming a secondary, clamping means duetto reaction ofthe clamping pressure Abinding the fixed jawand .bracket down againstthe base ring, said reaction valso drawing the shoulder of the swivel Aplate up .againstthe shoulder lof thebase ring.

-""16. 'In a vise as setforthinclaim15,..a sliding t j awfbracket carrying f the A.slidingj aw; `and said rstbracket carrying a non-rotatable nut; and

a screw shaft journaled in the sliding jaw andengaging the said nut.

17. In a vise as set forth in claim 15, a sliding jaw bracket carrying the` sliding jaw; and said rst bracket carrying a non-rotatable nut; and

a screw shaft journaled in the sliding jaw ascagaso bracket bracket and engaging the said nut; said rst named bracket having parallel guides, 'and said sliding kjaw brackethaving cooperating engaging the first mentioned guides.

19. In a vise as set forth in claim 15, a slid` i ing jaw bracket carrying the sliding jaw; and said rstbracket carrying a non-rotatable nut; and a screw shaft journaled in the sliding jaw bracket and engaging the said nut; said screw shaft having a wrench engaging extension projecting beyond the sliding jaw bracketmain- `tained at a constant requisitev minimum. i J

ROBERT S. CONDON. WILLIAM HARRY WILLIAMS.

guides l 

